Patents Assigned to Global Digital Instruments LLC
  • Soft start clutch controller
    Patent number: 8320096
    Abstract: A clutch actuator for an electromechanical clutch having a solenoid actuating coil initially provides power to the solenoid at a high rate by using a high duty cycle pulse with a modulated controller. When the initial engagement of the clutch elements is sensed by a decrease in current, the duty cycle of the pulse width modulator is reduced and thereafter increased in a controlled fashion to accomplish a soft start.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: November 27, 2012
    Assignee: Global Digital Instruments LLC
    Inventor: Sean O. Harnett